Terrestrial zone debris disk candidates in h and x Persei

被引：28

作者：

Currie, Thayne

Kenyon, Scott J.

Rieke, George

Balog, Zoltan

Bromley, Benjamin C.

机构：

[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02140 USA

[2] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA

[3] Univ Szeged, Dept Opt & Quantum Elect, H-6720 Szeged, Hungary

[4] Univ Utah, Dept Phys, Salt Lake City, UT 84112 USA

来源：

ASTROPHYSICAL JOURNAL | 2007年 / 663卷 / 02期

关键词：

planetary systems : formation; planetary systems : protoplanetary disks;

D O I：

10.1086/520509

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We analyze eight sources with strong mid-infrared excesses in the 13 Myr old double cluster h and x Persei. New optical spectra and broadband spectral energy distributions (SEDs; 0.36-8 mu m) are consistent with cluster membership. We show that the material with Tau similar to 300-400 K and L-d/L-* similar to 10(-4) to 10-(3) produces the excesses in these sources. Optically thick blackbody disk models, including those with large inner holes, do not match the observed SEDs. The SEDs of optically thin debris disks produced from terrestrial planet formation calculations match the observations well. Thus, some h and x Persei stars may have debris from terrestrial zone planet formation.

引用

页码：L105 / L108

页数：4

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